/Engine/Source/Runtime/Engine/Classes/Engine/NetConnection.h
UpdateFNetLevelVisibilityTransactionIdfor server instigated level streaming
[FNetLevelVisibilityTransactionId](API\Runtime\Engine\GameFramework\FNetLevelVisibilityTransactionId) UpdateLevelStreamStatusChangedTransactionId ( const [ULevelStreaming](API\Runtime\Engine\Engine\ULevelStreaming) * LevelObject, const [FName](API\Runtime\Core\UObject\FName) PackageName, bool bShouldBeVisible )